Singapore to Boston
19h 13m The flight from Singapore Changi Airport (SIN) to Boston Logan International Airport (BOS) covers 15,129 km (9,401 miles) and takes approximately 19h 13m gate to gate for a typical jet.
The route heads north on an initial great-circle bearing of 355°, passing near 68.7° N, 90.3° E at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 27h 30m | 27h 56m |
| Narrowbody jet (A320, 737) | 780 km/h | 19h 24m | 19h 49m |
| Widebody jet (777, 787, A350) | 900 km/h | 16h 49m | 17h 14m |
| Private jet (Gulfstream) | 850 km/h | 17h 48m | 18h 13m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| SIN | BOS | |
|---|---|---|
| Airport | Singapore Changi Airport | Boston Logan International Airport |
| City | Singapore | Boston |
| Country | Singapore | United States |
| ICAO | WSSS | KBOS |
| Coordinates | 1.3502, 103.994 | 42.362, -71.0079 |
| Elevation | 22 ft | 20 ft |
Questions
How long is the flight from Singapore to Boston?
A non-stop flight from Singapore (SIN) to Boston (BOS) takes about 19h 13m. The great-circle distance is 15,129 km (9,401 miles, 8,169 nautical miles), flying north on an initial bearing of 355°.
How far is Singapore from Boston?
15,129 kilometres in a straight line over the earth's surface — 9,401 miles or 8,169 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between SIN and BOS?
This page calculates the direct-line time and distance; it does not track airline schedules. At 15,129 km the route is at the extreme end of what any airliner can fly non-stop, so a connection is likely. Check an airline or booking site for what is actually scheduled.
What should I expect on a 19h 13m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.